How do you play the card game 2000?

It seems you're asking about a card game called "2000". There isn't a widely recognized card game with that exact name. It's possible you're thinking of a regional or family-specific game.

To give you the best help, could you tell me more about the game? For example:

* Where did you learn about this game? (Family, friends, online, etc.)

* What kind of cards are used? (Standard deck, special cards, etc.)

* Do you know any rules or objectives of the game?

With more information, I might be able to identify the game and explain how to play it!